declare class Expect<T> {
    private value;
    private predicates;
    constructor(value: T);
    toExist(): this;
    toBeNull(): this;
    toBeUndefined(): this;
    toBeNullOrUndefined(): this;
    toBeNotNull(): this;
    toBeNotUndefined(): this;
    toBeNotNullOrUndefined(): this;
    toBeEqual(otherValue: T): this;
    toBeNotEqual(otherValue: T): this;
    toBeGreaterThan(otherValue: T): this;
    toBeGreaterThanOrEqualTo(otherValue: T): this;
    toBeLessThan(otherValue: T): this;
    toBeLessThanOrEqualTo(otherValue: T): this;
    toMatchPredicate(predicate: (value: T) => boolean): this;
    toNotMatchPredicate(predicate: (value: T) => boolean): this;
    assertWithError<R>(error: R): R | undefined;
}
export declare function expect<T>(value: T): Expect<T>;
export {};